Initial commit of BudgetPro

widget/lineedittag.cpp

@@ -0,0 +1,180 @@
+#include "lineedittag.h"
+
+#include <QKeyEvent>
+#include <QPainter>
+#include <QDebug>
+#include <QPainterPath>
+
+LineEditTag::LineEditTag(QWidget *parent)
+    : QLineEdit (parent)
+{
+    setMinimumHeight(24);
+}
+
+LineEditTag::~LineEditTag()
+{
+
+}
+
+QStringList LineEditTag::getTags() const
+{
+    return tags;
+}
+
+QString LineEditTag::getTagsStr() const
+{
+    return tags.join(' ');
+}
+
+void LineEditTag::setTags(const QString& tags)
+{
+    if (!tags.isEmpty())
+    {
+        this->tags = tags.split(' ');
+        clear();
+        update();
+    }
+}
+
+void LineEditTag::setTags(const QStringList& tags)
+{
+    if (!tags.isEmpty())
+    {
+        this->tags = tags;
+        clear();
+        update();
+    }
+}
+
+void LineEditTag::addTag()
+{
+    if (!text().isEmpty())
+    {
+        tags.append(text());
+        clear();
+        update();
+    }
+}
+
+void LineEditTag::leaveEvent(QEvent *evt)
+{
+    QLineEdit::leaveEvent(evt);
+    cursorPos = clickedPos = QPoint();
+}
+
+void LineEditTag::keyPressEvent(QKeyEvent *evt)
+{
+    if (evt->key() == Qt::Key_Return || evt->key() == Qt::Key_Enter || evt->key() == Qt::Key_Space)
+    {
+        evt->accept();
+        addTag();
+    }
+    else
+    {
+        QLineEdit::keyPressEvent(evt);
+    }
+}
+
+void LineEditTag::mousePressEvent(QMouseEvent *evt)
+{
+    clickedPos = evt->pos();
+    QLineEdit::mousePressEvent(evt);
+}
+
+void LineEditTag::mouseMoveEvent(QMouseEvent *evt)
+{
+    QLineEdit::mouseMoveEvent(evt);
+    cursorPos = evt->pos();
+}
+
+void LineEditTag::paintEvent(QPaintEvent *evt)
+{
+    QLineEdit::paintEvent(evt);
+
+    QPainter painter(this);
+    painter.setRenderHint(QPainter::Antialiasing);
+
+    QFontMetrics fm = fontMetrics();
+    QRectF r = rect();
+    double space = double(r.height()-fm.height())/2;
+    int padding = 4;
+    int cross_size = int(r.height()-space*2);
+    r.setX(padding);
+    r.setY(double(r.height()-fm.height())/4);
+    QPen pen = painter.pen();
+    QBrush brush = painter.brush();
+    // Stackoverflow tag like
+    QColor tag_bg(225, 236, 244);
+    QColor tag_txt(44, 87, 119);
+    int x_offset = padding;
+    int idx = 0;
+    for (const QString& tag : tags)
+    {
+        QRect tag_rect = fm.boundingRect(tag);
+        r.setWidth(tag_rect.width()+(padding*2)+(padding+cross_size));
+        r.setHeight(tag_rect.height()+space);
+        QRectF cross_rect = QRectF(r.x()+r.width()-cross_size-padding, space, cross_size, cross_size);
+        if (cross_rect.contains(clickedPos))
+        {
+            clickedPos = QPoint();
+            tags.removeAt(idx);
+        }
+        else
+        {
+            QPainterPath tag_path;
+            tag_path.addRoundedRect(r, 2, 2);
+            // Draw tag background and text
+            painter.fillPath(tag_path, QBrush(tag_bg));
+            painter.setPen(tag_txt);
+            painter.drawText(QRectF(r.x()+padding, 0, tag_rect.width(), height()), Qt::AlignVCenter, tag);
+            // Draw the cross to remove tag
+            bool isHovered = r.contains(cursorPos);
+            if (isHovered)
+            {
+                // Manage the hovered
+                QPainterPath cross_path;
+                cross_path.addRoundedRect(cross_rect, 2, 2);
+                painter.fillPath(cross_path, QBrush(tag_txt));
+                // Manage the remove tag mouse cursor
+                if (cross_rect.contains(cursorPos))
+                {
+                    setCursor(Qt::PointingHandCursor);
+                }
+                else
+                {
+                    setCursor(Qt::ArrowCursor);
+                }
+            }
+            pen.setWidth(2);
+            pen.setColor( (isHovered ? tag_bg : tag_txt) );
+            painter.setPen(pen);
+            QPointF topL = cross_rect.topLeft(), topR = cross_rect.topRight(), botL = cross_rect.bottomLeft(), botR = cross_rect.bottomRight();
+            topL.setX(topL.x()+3);
+            topL.setY(topL.y()+3);
+            topR.setX(topR.x()-3);
+            topR.setY(topR.y()+3);
+            botL.setX(botL.x()+3);
+            botL.setY(botL.y()-3);
+            botR.setX(botR.x()-3);
+            botR.setY(botR.y()-3);
+            painter.drawLine(topL, botR);
+            painter.drawLine(topR, botL);
+
+            x_offset += r.width()+(padding);
+            r.setX(x_offset);
+            idx++;
+        }
+    }
+
+    if (textMargins().left() != (x_offset))
+    {
+        if (tags.isEmpty())
+        {
+            setTextMargins(0, 0, 0, 0);
+        }
+        else
+        {
+            setTextMargins(x_offset-padding, 0, 0, 0);
+        }
+    }
+}